Add ARC++ kiosk menu items and ability to start kiosk session.

components/user_manager/user_manager_base.cc

Index: components/user_manager/user_manager_base.cc
diff --git a/components/user_manager/user_manager_base.cc b/components/user_manager/user_manager_base.cc
index 3d13494f3d5b7761b74f69f9ad911fd1c2e4a34d..63cb1f8b486992dd8e0ceab63871aa6778430420 100644
--- a/components/user_manager/user_manager_base.cc
+++ b/components/user_manager/user_manager_base.cc
@@ -161,6 +161,8 @@ void UserManagerBase::UserLoggedIn(const AccountId& account_id,
       PublicAccountUserLoggedIn(user);
     } else if (user && user->GetType() == USER_TYPE_KIOSK_APP) {
       KioskAppLoggedIn(user);
+    } else if (user && user->GetType() == USER_TYPE_ARC_KIOSK_APP) {
+      ArcKioskAppLoggedIn(user);
     } else if ((user && user->GetType() == USER_TYPE_SUPERVISED) ||
                (!user && IsSupervisedAccountId(account_id))) {
       SupervisedUserLoggedIn(account_id);